Nut-lock



,mae cee.

UN [TED NTJES PATENT [ICE i v cLoUerrw. sHEL'roN, or FLOYD COUNTY, enonemf Application filed Apri117, i

have invented certaln new and useful Improvements in Nut-Locks, of which the following is a specification, reference being had tothe accompanying drawings.

Tlfhis invention relates to certain improvements in nutlocks and has relation more particularly to adevice of this general character embodying superposed nuts coacting with the opposed threads,-and itis an object of the invention to provide atnoveliand improved device of this general character whereby the applied nuts maybe effectively held against retrograde turningmovement.

Another object of the invention is to provide a novel and improved devicemf this general character wherein the opposed faces of the applied. superposed nuts are provided with"registering recesses or grooves in which is adapted to be inserted a locking keyyto gether with means whereby said key is effectively held against displacement.

The invention consists in the details of construction and in the combination and arrangement of the several parts of my improved lock whereby certain important advantages are attained and the device ren' dered simpler, less expensive and otherwise more convenient and advantageous for use, as will be hereinafter more fully set forth.

The novel features of my invention will hereinafter be definitely claimed.

In order that my invention may be the better understood, I will now proceed to de scribe the same with reference to the accompanying drawings, wherein:

Figure 1 is a View in top plan illustrating a nut lock constructed in accordance with an embodiment of my invention;

Fig. 2 is a sectional View taken substantially on the line 2-2 of Fig. 1;

Fig. 3 is a vertical view in side elevation with the key unlocked; and

Fig. 4 is a view in perspective .of the key herein embodied, detached, said key being in a position substantially at right angles to the position of the key illustrated in Fig. 1.

As disclosed in the accompanying drawings, B denotes a bolt of conventional form and which is provided at its free extremity Specification of. Letters Patent.

dove-tail grooves from the bore of each of the nuts N and N to the i periphery thereof whereby the oppo 1 groove NUT-LOCK.

Patented Aug. 17, .1920.

1920 Serial No. 374,607.

with the reversely threaded portions land 2. N denotes a nut engageable with the inner threadedportion 1 and N denotes a nut engageable with the outeri andreversely threaded portion 2.

The opposed faces of the nuts and: N' are provided with the radially disposed 3, preferably extending site ends of each of: said grooves are open.

1 Thenut N. is provided in i one of its facets and immediately below the outer end of the V with outstanding flange or web 4:. The upper or-outer portion of said flange or web tis cut-away or 1'ecluced,asat.a, whereby the outer end of the web or flange 4 is provided with a lip 5 and which lip can be upset or bended by requisite impact there- -on through the instrumentality of a suitable implement.

l i K denotes a key having ltS SldB walls pro vided with the substantially V shaped grooves 6 so that-the key will snugly fit within the registering grooves in the opposed faces of the nuts N and N. The key i, when applied, has its face portion extending exteriorly of the adjacent facets of the nuts N and N and the lower or inner marginal portion of said extended part of the key K is disposed on an inward bevel 7 so that when the lip 5 isupset orbended over into contact with said bevel 7, the key K is effectively maintained against displacement. 'Although I prefer to bend or upset the lip 5, it has been fully demonstrated in practice that, if desired, solder may be disposed between the bevel portion 7 of the key K and the adjacent or outer face of the lip 5. With the use of solder, it is unnecessary to upset or bend the lip 5. The outer or up er face of the extended part of the key I. is' provided with a transversely disposed groove or channel in which a suitable tool may be engaged to withdraw or extract the key from applied position after the lip 5 has been disengaged from the bevel portion 7 by a cold chisel or other tool or after the solder has been removed.

From the foregoing description, it is thought to be obvious that a lock constructticularly well adapted for use by reason of the convenience and facility with which it may be assembled and operated, and it will also be obvious that my invention is susceptible of some change and modification without departing from the principles and spirit thereof, and for this reason I do not wish to be understood as limiting myself to the preeise arrangement and formation of the several parts herein shown in carrying out my invention in practice except as hereinafter claimed.

I claim: 7 v

1. In combination with the shank and a pair of superposed nuts engaged thereon, the opposed faces of the nuts being provided with grooves adapted to register, the outer ends 'of the grooves bein open, a key substantially snugly fitting ii ithin the register- ,ing' grooves. and one of said nuts being provided withmeans for coaction with the key to hold the same against displacement, each of the grooves in the'nuts being dove-tailed, the side wallsof the key :being correspondingly recessed.

2.- In combination with the shank and a pair of vsuperposed nuts engaged thereon, the opposed faces of the nuts being provided with grooves adapted to register, the outer ends of the grooves being open, a key substantially snugly fitting within the registering grooves, and one of said nuts being provided with means for coaction with the key to hold the same against displacement, the forward portion of the key extending outwardly of the nuts when the key is in applied position, the outer face of said extended portion being provided with a transversely disposed groove to facilitate the extraction of the key.

8. In combination with the shank and a pair of superposed nuts engaged thereon, the opposed faces of the nuts being provided with grooves adapted to register, the outer ends of the grooves being open, a key sub stantially snugly fitting within the registering grooves, and one of said nuts being provided with means for eoaction with the key to hold the same against displacement the forward portion of the key extending outwardly of the nuts when the key is in applied position, the inner marginal portion of said extended part being beveled.

In combination with the shank and a pair of superposed nuts engaged thereon, the opposed faces of the nuts being provided with grooves adapted to register, the outer ends of the grooves being open, a key substantially snugly fitting within the registering grooves, and one of said nuts being provided with means for coaetion with the key to hold the salne against displacement, the forward portion of the key extending outwardly of the nuts when the key is in applied position, the inner marginal portion of said extended part being beveled, one of the nuts being provided with an outstanding lip adapted to overlie said beveled portion.

In testimony whereof I hereunto aflix my signature.

CLOUGH W. SHELTON. 

